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Note 2 - Investments - Schedule of Investments in Unrealized Loss Position (Details) - USD ($) $ in Thousands | Jun. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Less than 12 months, fair value, available for sale securities | $ 64,241 | $ 43,189
Less than 12 months, unrealized loss, available for sale securities | (673) | (511)
12 months or longer, unrealized loss, fair value, available for sale securities | 157,750 | 160,221
12 months or longer, unrealized loss, available for sale securities | (27,544) | (29,057)
Available for sale securities, fair value, total | 221,991 | 203,410
Available for sale securities, unrealized losses | (28,217) | (29,568)
Less than 12 months, fair value, held to maturity | 13,843 | 0
Less than 12 months, unrealized loss, held to maturity securities | (213) | 0
12 months or longer, unrealized loss, fair value, held to maturity securities | 2,405 | 8,144
12 months or longer, unrealized loss, held to maturity securities | (95) | (356)
Held to maturity securities, fair value | 16,248 | 8,144
Held-to-maturity, unrealized losses | (308) | (356)
Less than 12 months, fair value | 78,084 | 43,189
Less than 12 months, unrealized loss | (886) | (511)
12 months or longer, fair value | 160,155 | 168,365
12 months or longer, unrealized loss | (27,639) | (29,413)
Debt Securities, fair value, total | 238,239 | 211,554
Debt securities, unrealized loss | (28,525) | (29,924)
US Government Agencies Debt Securities [Member] |  |
Less than 12 months, fair value, available for sale securities | 0 | 0
Less than 12 months, unrealized loss, available for sale securities | 0 | 0
12 months or longer, unrealized loss, fair value, available for sale securities | 15,662 | 15,093
12 months or longer, unrealized loss, available for sale securities | (2,593) | (3,154)
Available for sale securities, fair value, total | 15,662 | 15,093
Available for sale securities, unrealized losses | (2,593) | (3,154)
Corporate Debt Securities [Member] |  |
Less than 12 months, fair value, available for sale securities | 5,940 | 6,781
Less than 12 months, unrealized loss, available for sale securities | (60) | (219)
12 months or longer, unrealized loss, fair value, available for sale securities | 5,408 | 5,337
12 months or longer, unrealized loss, available for sale securities | (592) | (663)
Available for sale securities, fair value, total | 11,348 | 12,118
Available for sale securities, unrealized losses | (652) | (882)
Less than 12 months, fair value, held to maturity | 11,591 | 0
Less than 12 months, unrealized loss, held to maturity securities | (208) | 0
12 months or longer, unrealized loss, fair value, held to maturity securities | 2,405 | 8,144
12 months or longer, unrealized loss, held to maturity securities | (95) | (356)
Held to maturity securities, fair value | 13,996 | 8,144
Held-to-maturity, unrealized losses | (303) | (356)
Municipal Bonds [Member] |  |
Less than 12 months, fair value, available for sale securities | 1,668 | 1,677
Less than 12 months, unrealized loss, available for sale securities | (3) | (10)
12 months or longer, unrealized loss, fair value, available for sale securities | 66,854 | 68,667
12 months or longer, unrealized loss, available for sale securities | (13,686) | (12,420)
Available for sale securities, fair value, total | 68,522 | 70,344
Available for sale securities, unrealized losses | (13,689) | (12,430)
Less than 12 months, fair value, held to maturity | 2,252 |
Less than 12 months, unrealized loss, held to maturity securities | (5) |
12 months or longer, unrealized loss, fair value, held to maturity securities | 0 |
12 months or longer, unrealized loss, held to maturity securities | 0 |
Held to maturity securities, fair value | 2,252 |
Held-to-maturity, unrealized losses | (5) |
Collateralized Mortgage-Backed Securities [Member] |  |
Less than 12 months, fair value, available for sale securities | 53,355 | 31,093
Less than 12 months, unrealized loss, available for sale securities | (538) | (241)
12 months or longer, unrealized loss, fair value, available for sale securities | 63,048 | 63,934
12 months or longer, unrealized loss, available for sale securities | (9,726) | (11,728)
Available for sale securities, fair value, total | 116,403 | 95,027
Available for sale securities, unrealized losses | (10,264) | (11,969)
Asset-Backed Securities [Member] |  |
Less than 12 months, fair value, available for sale securities | 3,278 | 3,638
Less than 12 months, unrealized loss, available for sale securities | (72) | (41)
12 months or longer, unrealized loss, fair value, available for sale securities | 6,778 | 7,190
12 months or longer, unrealized loss, available for sale securities | (947) | (1,092)
Available for sale securities, fair value, total | 10,056 | 10,828
Available for sale securities, unrealized losses | $ (1,019) | $ (1,133)

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